Nervous system - Class V
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The document discusses the nervous system, including the brain, spinal cord, and nerves. It describes the main parts of the brain - the cerebrum, cerebellum, and brain stem. It explains the functions of these parts and how sensory, motor, and mixed nerves transfer messages between the brain and other parts of the body for both voluntary and involuntary actions.
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Nervous system - Class V
- 4. OUR BRAIN
- 5. Brain controls the movement of our body and its various parts.
- 6. LEARN Brain enables us to learn, think, memorise and apply logic. THINK MEMORISE
- 7. Brain keeps our heart and lungs working.
- 12. CEREBELLUM Cerebellum It is located at the back of the brain, below the cerebrum.
- 13. Cerebellum helps us to stand upright.
- 15. BRAIN STEM Brain Stem Brain stem lies beneath the Cerebellum. It is also known as the MEDULLA
- 16. Brain stem connects the rest of the brain with the spinal cord.
- 20. Do you know? The front of your brain is larger than any other animal’s brain even that of a dinosaur!
- 21. Spine
- 22. SPINAL CORD
- 24. Kinds of Nerves Sensory Nerves Motor Nerves Mixed Nerves Nerves are the pathways through which messages are transferred.
- 25. SENSORY NERVES Sensory nerves bring messages from the sense organs to the brain.
- 26. When a mosquito bites your figure, a message is sent to the brain by the sensory nerve.
- 27. MOTOR NERVES Motor nerves carry messages from the brain to the other parts of the body.
- 28. When a mosquito bites our figure, the motor nerve sends the message back from the brain to shoo away the mosquito.
- 29. MIXED NERVES Mixed nerves carry messages to and from the brain.
- 30. Label the parts of the brain correctly CEREBRUM CEREBELLUM BRAIN STEM
- 31. ACTIONS OF THE BODY VOLUNTARY ACTION INVOLUNTARY ACTION
- 32. VOLUNTARY ACTION Jumping Ironing clothes
- 33. Pumping of heart Blinking of eyes Yawning INVOLUNTARY ACTION
- 34. Reflex actions A reflex action is an involuntary action.
- 35. • When a mobile phone vibrates, which of the following nerves sends the message to the brain that someone is calling? A. Sensory Nerves B. Motor Nerves C. Mixed Nerves
- 36. NERVOUS SYSTEM BRAIN •- Cerebrum •- Cerebellum •- Brain Stem SPINAL CORD NERVES •- Sensory •- Motor - Mixed
- 37. RECAP Organs Nerves Spinal Cord Brain Message